Belt conveyer



Nov. 6, 1928. 1,690,301

H. E; HOWARD BELT CONVEYER Filed June 24, 1925 PATENT OFFICE.

HERMON E. HOWARD, F CHICAGO, ILLINOIS, ASSIGNOR TO WELLER MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

:BELT CONVEYER.

Application filed .Tune 2,4, 1925. Ser-ial No. 39,192.

The invention relates to pulleys for belt conveyers and supports therefor.

One object of the invention is to provide an improved construction, in which a troughing roll, which is provided with av closed upper or outer end, is provided with means for delivering lubricant tothe inner end of the shaft for said roll, so -that the structure may be lubricated while the wheel is in operation.

Other objects of the invention will appear from the det-ail description.

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Fig. 1 is a vertical axial sect-ion of a troughing roll embodying the invention. Fig. 2 is a section on line 2 2 of Fig. 1. Fig. 3 is a section through the outer end of the pulley and tsshaft, showing the abutment ,pin for preventing outward displacement of the pulley.

The invention is exemplified in a structure comprising an endless belt 8, only the upper reach of which is shown. This portion of the belt is carried by a pulley 9, which supports the central portion of the belt and inclined troughing roll 10. The troughing roll comprises a sheet metal rim 11, an outer flanged head 12 and an inner flanged head 13, both of which are tixedly secured by any suitable means, such as pressing` or welding,'into the rim. Each of said heads is provided with anV integral hub 15 which extend toward each other, and a sleeve 16 extends between said hubs, the .hubs `and sleeves constituting a continuous enclosure between the heads. The sleeve 16 is pressed onto reduced portions 17 of the hubs 15. These heads are preferably formed of sheet metal.

The supporting structure for the .troughing roll comprises a bracket formed of ysections 18 which are secured together by a bolt 19, and are provided with complementary jaws 20, which are provided with complementary cylindrical recesses 21, and are adapted to be clamped by bolts 22 to xedly secure the troughing roll shaft in its desired inclined position. Said shaft comprises a hollow member 23 and a sleeve 24 ixedly se.- cured thereon, and which fits inthe cylinL drical seats 21 and is adapted to be gripped by the clamping members 20. The hollow shaft 23 extends upwardly and outwardly through the hub 15 and sleeves 16. Roller.

bearings 25 are interposed between the hubsv and the shaft. The shoulder 26 in the inner hub 15 confines the inner set of rollers against out-ward movement and al ring 27 pressed into the hub confines themagainst inward movement in the hub. A similar shoulder 26 in the outer holder 15 confines the outer set of rollers against inward movement in the hub, and a ring 28, pressed into the outer endvof the Aouter hub confines said rollers against outward movement.

v Ankoutwardly bulged cap 29, fixed by bolts 30 to the outer head 12, encloses the .space within the hub of said shaft and is ,adapted to bear against a plug 31 secured in the outer end of shaft23, so that the plug and said cap will serve as thrust means for confining the pulley against'inward downward movement. A pin 32 extends through the hollow shaft QEKadjacentv its outer end-and serves as a thrust member adapted to coact with the ring 28 to confine the pulley against out-warddisi placement on the shaft. l l

A pipe 35 is connected to a bushing 36 wluch is fixed in the inner end of hollow shaft 23 to deliver the lubricant into the chamber in said shaft. This pipe is curved downwardly and outwardly from the bushing36 and extends thence outwardly, so'its outer end, which is provided with a-.suitable device B5 37 1s adapted to be connected to a grease gun, ,so that lubricant may be forced through the plpe into the hollow shaft. .The plug 31 is provided with a duct 38, leading outwardly from the chamber in the hollow'shaft, through wh1ch .lubricant will be fed into the cap 29. This lubricant will keep the bearing surface between the plug and the cap lubricated. and will also pass downwardly on the outside of the hollow shaft to lubricate bothroller bear- 95 ings, the sleeve 16 permitting the lubricant to pass `from the outerset of rollers'to the inner set. A ri`ng'39 isvpressed onto the hollow shaft 23 adjacent the bearing retaining ring 27, to form -a seal for the lubricant.

The supporting roll 9 is fixed-to a shaft 40, which is journalled in a roller bearing 41 in a bearing box 42, which is provided with trunnions 43 to pivotally support said box in' lugs 44 projecting inwardly from the brackets 18. A pipe 45 is connected to deliver lubricant into said box and provided at its outer end with a fitting 37 for connection to a grease ipe.. Pipes 35 and 45 are secured together or mutual support by a. clamp 46,

The invention exemplifies a troughing roll which is supported by a`liollow stationary shaft, through which lubricant is supplied to v f The roll may be removed from the shaft by removiiig'the screws 30. and cap 29. kVVhe-n the cap is removed, the thrust pin 32 will be accessible so it can be removed, whereupon the pulley will be free to be withdrawn longitudinally from the outer end of the shaft. In mounting the pulley on the shaft, the pin 32 will be inserted intothe shaft after the pulley has been placed thereon,- and when the cap 29 is secured in place, the shaft and bearing surface will be completely enclosed for the retention of lubricant.

The invention is not to be understood as restricted to the details set` forth, since these may be modified within the scope of the appended claims, without departing from' the spirit and scope of the invention.

Having thus described the invention, what I claim asnew and desire to secure by Letters Patent, is:

l. In a support for a conveyer belt, the combination of a bracket, an inclined hollow shaft having its inner end fixedly secured in the bracket, a troughing roll comprising a rim, ahead at the outer end of the rim having an opening therein throughv which the shaft may pass, a head adjacent the inner end of the rim and a hub between the heads, a cap removably secured to the outer head and forming a closure for said opening, the louter end of the shaft and the cap being provided with -abuttin surfaces to limit the inward movement o the roll, means adjacent' the outer end of the shaft for holding the roll against outward movement, and means for delivering lubricant to the inner end of the shaft and frointhe shaft to the bearing surfaces between tlie -hub and the shaft.

2. In a support for a conveyer belt, the combination of a bracket, an inclined shaft having its end lixedly secured in Vthe bracket` and a plug secured in'its outer end, a troughing roll comprising a rim, a head at the outer end of the rim having an opening therein through which the shaft may be inserted, a head adjacent the inner end of the rim and a hub between the heads, a cap removably secured to the outer headand forming a closhaft.

3. In .a support for a conveyercbelt, the combination of a bracket, an inclinedY shaft having its end xedly secured in the bracket and a plug secured in its outer end, a trough- -ing roll comprising a rim, a head at the outer end of the rim having an opening therein throughwhich the shaft may be inserted, a head adjacent the inner end of the rim and a 'hub between the heads, a cap removably secured to the-outer head and forming a closure for the opening, the cap and said plug engaging each other to limit the inward movement of the roll, a pin carried by the shaft adjacent its outer end, an abutment' on the hub engaged by the pin to hold the roll against outward movement, and means for delivering lubricant between the hub! and the shaft.

4. In a support for a conveyer belt, the combination of a supporting bracket, a hollow sha-ft having its inner end fxedly secured in the bracket, a troughing roll journaled on said shaft, the roll being provided with a head adjacent the outer end of the shaft, a cap removably secured to the head for enclosing the outer end of the shaft, a plug in the outer end of the shaft for resisting inward thrust, removable means on the shaft for resisting outward thrust, accessible when the cap is removed, and means for delivering lubricant to the inner end of the shaft, the plug having a duct for delivering lubricant from the outer end of the shaft to the cap. i

5. In' a support for a conveyer belt,the combination of a supporting bracket, a holy low sha-ft having its inner end xedly secured in the braeket, a troughing roll ycomprising a rim, inner andouter heads fixed therein, the heads being provided with hubs and al sleeve extending between the hubs, roller bearings between the hubs and the shaft, means in the hubs also forconining the'bearings longi; tudinally, a cap for enclosing t-he outer end of the shaft, removably secured to the outer head, a plug for resisting inward thrust of the roll, and having an opening therethrough, a removablepin in the outer end of the shaft for resisting outward thrust, and mea-ns for delivering lubricant to the inner end of the shaft, the plug having a duct therein, through which lubricant will pass.

Signed at Chicago, Illinois, this 21st day of May, 1925.

HERMON E. HOWARD.

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